On Mon, 2010-06-21 at 23:42 +0200, Ask Bjørn Hansen wrote:
On Jun 21, 2010, at 23:34, William Pitcock wrote:
On Mon, 2010-06-21 at 23:32 +0200, Ask Bjørn Hansen wrote:
Hi everyone,
We're going to anycast a /24 for some DNS servers (and possibly another UDP based service)[1].
I see that ARIN are listing on https://www.arin.net/knowledge/ip_blocks.html the smallest allocations from each prefix. Will we have trouble getting a /24 announced if we take it from a regular /20?
No, you can split up allocations as you want, provided you can prove you own them.
Some providers however, won't announce anything smaller than a /24.
I guess to rephrase my question:
Are there (a significant number of) providers that will filter a /24 announcement from an ARIN prefix not in the list of prefixes where they allocate /24 blocks.
I have yet to encounter any. They are "your IPs" as far as they are concerned, so they'll typically announce whatever you ask as long as they are "your IPs". William